CN210196188U - Multistage hydraulic cylinder with improved structure - Google Patents
Multistage hydraulic cylinder with improved structure Download PDFInfo
- Publication number
- CN210196188U CN210196188U CN201921204281.7U CN201921204281U CN210196188U CN 210196188 U CN210196188 U CN 210196188U CN 201921204281 U CN201921204281 U CN 201921204281U CN 210196188 U CN210196188 U CN 210196188U
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- China
- Prior art keywords
- piston rod
- ring
- oil cylinder
- rubber sleeve
- rear end
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 33
- 239000010720 hydraulic oil Substances 0.000 abstract description 13
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- Sealing With Elastic Sealing Lips (AREA)
- Actuator (AREA)
Abstract
The utility model discloses a multi-stage hydraulic oil cylinder with improved structure, which comprises an oil cylinder, wherein one side of the oil cylinder is provided with a rear end cover, the inner side of the rear end cover is provided with a fixed ring, one side of the rear end cover is provided with a second connector, a connecting hole is arranged inside the second connector, an elastic retainer ring is arranged below the connecting hole, a first piston rod is arranged inside the oil cylinder, one end of the first piston rod is provided with a rubber sleeve, a spring is arranged at the inner side of the rubber sleeve, a support ring is arranged above the first piston rod, both sides of the support ring are provided with steel wire check rings, one side of each steel wire check ring is provided with a sealing ring, the other end of the first piston rod is provided with a double-lip dust ring, one side of the double-lip dust ring is provided with a Y-shaped sealing ring, and one side of the Y-shaped sealing ring is provided with a guide ring. The utility model discloses simple structure, the noise that produces is few to the life who has improved the device increases.
Description
Technical Field
The utility model relates to a hydraulic cylinder technical field specifically is a institutional advancement's multistage hydraulic cylinder.
Background
The hydraulic oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion, has simple structure and reliable work, can remove a speed reducer when realizing reciprocating motion, has no transmission clearance and moves stably, thereby being widely applied to hydraulic systems of various machines.
However, the existing multistage hydraulic oil cylinder is easy to cause machine failure due to dust, has high noise when working, has large damage to the oil cylinder and shortens the service life of the hydraulic oil cylinder; therefore, the existing requirements are not met, and a multistage hydraulic oil cylinder with an improved structure is provided for the requirements.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a institutional advancement's multistage hydraulic cylinder to current multistage hydraulic cylinder who proposes in solving above-mentioned background art should lead to the machine trouble for the dust easily, and the noise is big at hydraulic cylinder during operation, and great to the hydro-cylinder harm, shortened hydraulic cylinder's life scheduling problem.
In order to achieve the above object, the utility model provides a following technical scheme: a multi-stage hydraulic oil cylinder with an improved structure comprises an oil cylinder, wherein a rear end cover is installed on one side of the oil cylinder, a fixing ring is installed on the inner side of the rear end cover, a second connector is installed on one side of the rear end cover, a connecting hole is formed in the second connector, an elastic check ring is arranged below the connecting hole, a first piston rod is arranged in the oil cylinder, a rubber sleeve is arranged at one end of the first piston rod, a spring is arranged on the inner side of the rubber sleeve, a supporting ring is arranged above the first piston rod, steel wire check rings are arranged on two sides of the supporting ring, a sealing ring is arranged on one side of each steel wire check ring, a double-lip dust ring is arranged at the other end of the first piston rod, a Y-shaped sealing ring is arranged on one side of the double-lip dust ring, a guide ring is arranged on one side of the Y-shaped, the one end of second piston rod is provided with the rubber sleeve, the internally mounted of rubber sleeve has the spring, three support ring is installed to the top of second piston rod, and installs the steel wire retaining ring in one side of support ring, the third piston rod is installed to the below of second piston rod, the rubber sleeve is installed to the one end of third piston rod, the inboard of rubber sleeve is provided with the spring, the below of third piston rod is provided with interior oil pipe, first connector is installed to the opposite side of hydro-cylinder, the inside of first connector is provided with oil pipe.
Preferably, a sealing ring is arranged at the joint of the rear end cover and the oil cylinder.
Preferably, a sealing ring is arranged on the outer side of one end of the inner oil pipe.
Preferably, one side of the steel wire retainer ring is provided with a limiting groove.
Preferably, the spring and the second piston rod are fixed by welding.
Preferably, the double-lip dust ring is made of polyurethane.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model has the advantages that the double-lip dust ring is arranged, so that the piston rod can have good scraping effect on dirt when in work, dust is prevented from entering the oil cylinder, the polyurethane material is selected for manufacturing the double-lip dust ring, the wear resistance of the double-lip dust ring is increased, and the service life of the double-lip dust ring is prolonged;
2. the utility model discloses a set up the spring, make the piston rod have certain cushioning effect, prevent piston rod and hydro-cylinder contact, have the scraping phenomenon to the hydro-cylinder, increase hydraulic cylinder's life to can the noise abatement, through setting up a plurality of guide rings, the messenger avoids metal friction to lead to drawing a jar phenomenon.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
FIG. 2 is a cross-sectional view of the entire invention;
fig. 3 is an enlarged schematic view of the structure a of the present invention.
In the figure: 1. a rear end cap; 2. a fixing ring; 3. an oil cylinder; 4. a first piston rod; 5. a second piston rod; 6. a third piston rod; 7. a guide ring; 8. a Y-shaped seal ring; 9. a double-lip dust ring; 10. a first connector; 11. an oil pipe; 12. an inner oil pipe; 13. a circlip; 14. connecting holes; 15. a second connector; 16. a seal ring; 17. a support ring; 18. a steel wire retainer ring; 19. a spring; 20. a rubber sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1 to fig. 3, the present invention provides an embodiment: a multi-stage hydraulic oil cylinder with improved structure comprises an oil cylinder 3, a rear end cover 1 is installed on one side of the oil cylinder 3, a fixing ring 2 is installed on the inner side of the rear end cover 1, a second connector 15 is installed on one side of the rear end cover 1, a connecting hole 14 is formed in the second connector 15, an elastic check ring 13 is arranged below the connecting hole 14, a first piston rod 4 is arranged in the oil cylinder 3, a rubber sleeve 20 is arranged at one end of the first piston rod 4, a spring 19 is arranged on the inner side of the rubber sleeve 20, a support ring 17 is arranged above the first piston rod 4, steel wire check rings 18 are arranged on two sides of the support ring 17, a sealing ring 16 is arranged on one side of each steel wire check ring 18, a double-lip dust-proof ring 9 is arranged on the other end of the first piston rod 4, a Y-shaped sealing ring 8 is arranged on one side of the double-lip dust-proof ring 9, one end of the second piston rod 5 is provided with a rubber sleeve 20, the inside of the rubber sleeve 20 is provided with a spring 19, three support rings 17 are installed above the second piston rod 5, a steel wire retainer ring 18 is installed on one side of each support ring 17, the third piston rod 6 is installed below the second piston rod 5, the rubber sleeve 20 is installed at one end of the third piston rod 6, the spring 19 is arranged on the inner side of the rubber sleeve 20, an inner oil pipe 12 is arranged below the third piston rod 6, the first connecting head 10 is installed on the other side of the oil cylinder 3, and an oil pipe 11 is arranged inside the first connecting head 10.
Furthermore, a sealing ring is arranged at the joint of the rear end cover 1 and the oil cylinder 3, so that the sealing performance of the rear end cover 1 and the oil cylinder 3 is improved, and the oil leakage phenomenon is prevented.
Further, a sealing ring is arranged on the outer side of one end of the inner oil pipe 12, so that the sealing performance of the inner oil pipe 12 is improved.
Further, one side of the steel wire retainer ring 18 is provided with a limiting groove, so that the piston rod can be quickly determined when being recovered, and damage to the oil cylinder 3 is reduced.
Further, the spring 19 and the second piston rod 5 are fixed through welding, and the spring 19 and the second piston rod 5 are fixed through welding, so that the piston rods have a certain buffering effect, the piston rods are prevented from being in contact with the oil cylinder 3, the oil cylinder 3 is prevented from being scratched, and the service life of the hydraulic oil cylinder is prolonged.
Furthermore, the double-lip dust ring 9 is made of polyurethane, so that the dust-proof capability of the device is improved.
The working principle is as follows: when in use, the hydraulic oil pump is fixed through the connecting hole 14 in the second connector 15, the object to be lifted is connected through the first connector 10, after the connection is completed, hydraulic oil is added into the oil cylinder 3, so that the hydraulic oil cylinder can operate, firstly, the third piston rod 6 enables the third piston rod 6 to easily lift the object through the guide ring 7, when the third piston rod 6 is lifted to the maximum length, the second piston rod 5 starts to lift, when the second piston rod 5 reaches the maximum length, the first piston rod 4 is lifted, the corresponding piston rod is lifted according to the requirements of different heights, when the piston rod is retracted, the double-lip dust-proof ring 9 is arranged on one side of each piston rod, so that the piston rod can have good scraping effect on dirt, dust is prevented from entering the oil cylinder 3, the service life of the hydraulic oil cylinder is prolonged, and the spring 19 is arranged at one end of each piston rod, the piston rod has a certain buffering effect, the piston rod is prevented from contacting the oil cylinder 3, the oil cylinder 3 is prevented from being scratched, and the service life of the hydraulic oil cylinder is prolonged.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a multistage hydraulic cylinder of institutional advancement, includes hydro-cylinder (3), its characterized in that: the rear end cover (1) is installed on one side of the oil cylinder (3), the fixing ring (2) is installed on the inner side of the rear end cover (1), the second connector (15) is installed on one side of the rear end cover (1), the connecting hole (14) is formed in the second connector (15), the elastic check ring (13) is arranged below the connecting hole (14), the first piston rod (4) is arranged in the oil cylinder (3), the rubber sleeve (20) is arranged at one end of the first piston rod (4), the spring (19) is arranged on the inner side of the rubber sleeve (20), the support ring (17) is arranged above the first piston rod (4), the steel wire check rings (18) are arranged on two sides of the support ring (17), the sealing ring (16) is arranged on one side of the steel wire check ring (18), and the double-lip dust-proof ring (9) is arranged at the other end of the first piston rod (, one side of the double-lip dust ring (9) is provided with a Y-shaped sealing ring (8), one side of the Y-shaped sealing ring (8) is provided with a guide ring (7), a second piston rod (5) is installed below the first piston rod (4), one end of the second piston rod (5) is provided with a rubber sleeve (20), a spring (19) is installed inside the rubber sleeve (20), three support rings (17) are installed above the second piston rod (5), a steel wire check ring (18) is installed on one side of each support ring (17), a third piston rod (6) is installed below the second piston rod (5), the rubber sleeve (20) is installed at one end of the third piston rod (6), the spring (19) is arranged on the inner side of the rubber sleeve (20), an inner oil pipe (12) is arranged below the third piston rod (6), a first connecting head (10) is installed on the other side of the oil cylinder (3), an oil pipe (11) is arranged inside the first connecting head (10).
2. A structurally improved multi-stage hydraulic ram as set forth in claim 1 wherein: and a sealing ring is arranged at the joint of the rear end cover (1) and the oil cylinder (3).
3. A structurally improved multi-stage hydraulic ram as set forth in claim 1 wherein: and a sealing ring is arranged on the outer side of one end of the inner oil pipe (12).
4. A structurally improved multi-stage hydraulic ram as set forth in claim 1 wherein: one side of the steel wire retainer ring (18) is provided with a limiting groove.
5. A structurally improved multi-stage hydraulic ram as set forth in claim 1 wherein: the spring (19) and the second piston rod (5) are fixed through welding.
6. A structurally improved multi-stage hydraulic ram as set forth in claim 1 wherein: the double-lip dust ring (9) is made of polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921204281.7U CN210196188U (en) | 2019-07-29 | 2019-07-29 | Multistage hydraulic cylinder with improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921204281.7U CN210196188U (en) | 2019-07-29 | 2019-07-29 | Multistage hydraulic cylinder with improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210196188U true CN210196188U (en) | 2020-03-27 |
Family
ID=69864765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921204281.7U Expired - Fee Related CN210196188U (en) | 2019-07-29 | 2019-07-29 | Multistage hydraulic cylinder with improved structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210196188U (en) |
-
2019
- 2019-07-29 CN CN201921204281.7U patent/CN210196188U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 |